Roofing or siding for buildings



Nov. 15, 1927.

J. A. FLANAGAN ET AL ROOFING OR SIDING FOR BUILDINGS Filegi Feb. 28, 1925 min Fig. 5. s E

INVENTORS .Zmw

M By Attorneys, v jam, W

Patented Nov. 15, 1927.

UNITED STAT JAMES A. FLANAGAN,

ES PATENT OFFICE.

ROOFING R SIDING FOR BUILDINGS.

Application filed February 28, 1925. Serial No. 12,256.

T he present invention relates to sheet metal roofing or the like, of the standing lock-joint type, and aims to provide certain improvements therein.

Among the various objects of the invention, the following may be enumerated: to provide a roofing of the type described, which may be formed of lighter metal than is commonly used for such roofings, without detracting from the strength thereof; to provide means for preventing buckling of the roofing sheets upon their expansion and contraction; and to provide means which will prevent separation or opening of the lockjoints due to the action of wind, frost or other causes.

According to the present invention, the foregoing and other objects are realized through the use of our novel standing lockjoint roofing construction, wherein, through the formation of strengthening ribs in and at the base of the standing lock-joints, use may be made of lighter metal which may be more easily handled and which, therefore, requires fewer cleats and less time for securing the roofing in place. The various econorni'es which result from the foregoing serve to reduce the cost of the roofing as a whole.

In the accompanying drawings wherein we have shown a preferred embodiment of our invention:

Figure 1 shows a sectional perspective view of'the roof embodying our invention.

Fig. 2 is a section, parts being broken away, taken on the plane of the line 2-2 of Fig. 1.

Fig. 3 is a section taken on the plane of the line 33 of Fig. 1.

Referring to the drawings, let A represent a roof board of a roof, which is covered with a layer of felt, asbestos, or the like B, which in turn is covered by our improved sheet metal roofing, indicated as a whole by the reference character C.

The roofing C is of the standing lock-joint type, the lock joints being in the form of hollow ribs D, formed by the overlapping and inter-engagement of the lateral margins of the metal sheets. These sheets each consists of an intermediate flat portion E, one longitudinal margin of which is formed with an upstanding web F, the free longitudinal edge of which is corrugated as shown at G. The opposite longitudinal margin of the sheet is formed wi h an upstanding web H and a downwardly directed web I spaced therefrom, each of said webs at the top thereof being formed with outwardly directed flanges or lateral otl'set portions J, which are joined together by a crown portion K, which may be of any desired profile. The offset portions J may form with each of the webs H and I a dihedral angle of any degree, but it is preferable that this angle be more than 90 degrees, that is to say, the offset portions J should extend obliquely outward from the webs I and H. Regardless of the divergence of this angle. it is important that the corrugated edge G be of a profile to bear against the flange J, and preferably at more than one point, as shown at 7' and j. To insure this hearing action and to assist in holding the roofing down upon the roof, Z-shaped cleats L, preferably formed of spring metal, are employed, the top bar of the 2 bearing down upon the overlapping portions of the parts G and J, and the bottom bar of the 2 being secured to the roof by nails or the like. In order to provide for lateral expansion and contraction of the roofing sheets, they are corrugated along the length thereof, preferably adjacent the base of the upstanding ribs, as shown at M. These corrugations also serve to strengthen and render the upstanding ribs more rigid.

In each sheet the forward lateral edge 0 is formed with a downwardly bent return flange P and the rear lateral edge Q is formed with an upwardly bent return flange R adapted to interlock with the flange P when the plates are assembled. Cleats S, which engage over the flange R, are employed for securing the intermediate portion of the sheet E to the roof.

In the laying or applying of the roofing to a roof, the sheets, which are formed with a profile as described, are first assembled in longitudinal relation for the length of the roof by having the hollow rib D of one engage over the rear end of the other, and the flange P slid back to engage under flange R. In order to facilitate this assembling, the profiles of the rear end of the ribs are of slightly smaller dimensions, as shown at T, so that the sheets may be 'slid down a suflicient distance beyond its final position and. then slid back so that the flanges P and R will interlock. This procedure is followed in applying the succeeding longitudinal rows, it being understood,

however, that the free rib I of each sheet is first tilted over the corrugated edge G so as to permit the sliding action aforementioned.

The roofing as thus described, is greatly strengthened by virtue of its profile, and especially so because of the corrugations M and G, and as a consequence thereof the metal of which the roofing is formed may be of lighter weight than heretofore commonly used. Furthermore, because of the strengthening provided by'the profile, softrolled copper, which is easily worked, may be substituted for hard-rolled copper. It will also be noted that the longitudinal free edge of the webs I seat in the troughs of the corrugations M, and in View of this construction, it will be appreciated that the webs I will be prevented from separating from their close abutting relation with the webs F, due to wind action, frost or other causes, since such separation will be prevented by the ridg-es of the corrugations M.

While we have shown and described a preferred embodiment of our invention, it will be understood that variations in certain structural features thereof may be resorted to without departing from the spirit of the invention as defined in the claims.

What we claim is:

1. A sheet metal roofing or the like of the standing lock-joint type, comprising a pinrality of metal sheets, each having its longitudinal margins formed with parallel web members, there being a single upstanding web at one margin of the sheet and spaced webs at the other margin constituting a hollow standing rib, the single web of one sheet engaging within the hollow web of an adjacent sheet and abutting against one of its webs, the edge of the single web member being corrugated parallel to said edgeand the abutting web member being formed with an offset portion against whiclr the corrugated edge on the first web bears.

2 A sheet metal roofing or the like of the standing lock-joint type, comprising a plurality of metal sheets, each having its longitudinal margins formed with parallel web members, there being a single upstanding web at one margin of the sheet and spaced webs at the other margin constituting a hollow standing rib, the single web of one sheet engaging within the hollow web of an adjacent sheet and abutting against one of its webs, the edge of the single web memher being corrugated parallel to said edge and the abutting web member being formed with an offset portion against which the corrugated edge on the first web bears, the oil"- set portion forming a dihedral angle of more than 90 with its web.

3. A roofing or the like, comprising a metal sheet having an intermediate flat portion and endportions, one end portion extending upwardly in the form of a web which terminates in a corrugated edge, and the other end portion formed with a pair of spaced parallel webs, one of which extends upwardly from the intermediate flat portion, and connects with the other web by a'crown portion and oppositely directed lateral portions, all the webs being substantially at right angles to and lying on the same side of the intermediate portion, and said intermediate portion being provided with corrugations at the foot of the webs.

In witness whereof, we have hereunto signed our names.

JAMES A. FLANAGAN. THOMAS P. FLANAGAN, JR. JOHN J. FLANAGAN. 

